Virus and PC Problem?

I think my PC has a virus as I have been having some difficulties lately. I purchased SpyWare Dr and that picked up alot of errors, but I am having trouble still when I start up. I keep getting an error saying cannot find piwemmmr\smss.exe and sometimes my PC just shuts down to the blue screen.

Sometimes when I start up I get a message saying your computer will close down and it has a countdown of 1 minute.

I have tried AVG, Avast and nothing seems to work.

I also reformatted my pc a while ago and it did not wipe my default folder, so in Documents and Settings I now have 3 folders. The original one "Clairs PC" when I try and open it I get the message this folder is not accessible, access is denied. I cant delete it and it is full of stuff I originally had on my pc before I formatted. Obviously this is taking up space and I just want rid of it.

Can anyone please help with either of these problems. I would be very grateful.

Thanks

Clair

Virus and PC Problem?internet security

Reformat and Reinstall for Windows

http://www.cyberwalker.com/topic/36

Clean Install Windows XP

http://www.michaelstevenstech.com/cleanx...

http://www.michaelstevenstech.com/cleanx...

http://winhowto.blogspot.com/2006/06/how...

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Re formating you harddrive is always the last option.